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40 mm Bicycle Stems

Stem length is measured from the center of one clamp to the center of the other clamp. This measurement is sometimes known as the reach or extension.

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Showing 113 products:

Industry Nine A35 Stem, 35 x 40mm, +/-8d, Gold
Industry Nine A35 Stem, 35 x 40mm, +/-8d, GoldIndustry Nine

7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina 180 degree clamp wrap with high strength 316 stainless … read more

your price $145.00 + ships free

BuyBuyPART NUM 952467
Truvativ Descendant 35mm Clamp Stem 0mm Rise 40mm Length for 1-1/8" Steerer Black
Truvativ Descendant 35mm Clamp Stem 0mm Rise 40mm Length for 1-1/8" Steerer Black

Built strong to take on the world's toughest trails, Descendant stems keep you pointed in the right direction. Item Specifications Bar … read more

8% offretail $65.00 your price $59.99 + ships free

BuyBuyPART NUM 429586
E*thirteen Base 35 Stem, 35 x 40mm, Black
E*thirteen Base 35 Stem, 35 x 40mm, Black

A 35mm clamp is ideal strength to weight ratio, integrated T25 hardware with rounded heads prevents injury Item Specifications steerer … read more

your price $49.95 + ships free

BuyBuyPART NUM 457827
Renthal Apex 35 Stem: 35mm Clamp, 1-1/8" Steerer, 40mm Length, +/- 6 degree, Black/Gold
Renthal Apex 35 Stem: 35mm Clamp, 1-1/8" Steerer, 40mm Length, +/- 6 degree, Black/Gold

Combining All Mountain strength, Enduro stiffness and XC weight savings, this stem is ideal for any type of riding style. The unique 240 degree, two-piece … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

$9 offretail $140.45 your price $130.95 + ships free

BuyBuyPART NUM 638633
Salsa Guide Trail Stem- 40mm, 31.8 Clamp, 0 Degree, 1 1/8", Aluminum, Black
Salsa Guide Trail Stem- 40mm, 31.8 Clamp, 0 Degree, 1 1/8", Aluminum, BlackSalsa

The Guide Trail Stem translates your handlebar input into precise trail movements. It's an ideal choice for modern trail bikes that have a long front … read more

your price $45.00 + ships free

BuyBuyPART NUM 139349
Industry Nine A35 Stem - 40mm 35mm +/- 8 Degree Aluminum Black
Industry Nine A35 Stem - 40mm 35mm +/- 8 Degree Aluminum BlackIndustry Nine

Taking name and shape from the A-axis in I9's five-axis machining centers, the A35 is an all-mountain stem utilizing a 35mm bar diameter and demonstrating … read more

your price $145.00 + ships free

BuyBuyPART NUM 324697
Whisky No.7 MTN Stem 40mm 31.8 0 Degree Black
Whisky No.7 MTN Stem 40mm 31.8 0 Degree BlackWhisky Parts Co.

No.7 Mountain stems offer a stout connection for modern mountain bars. They match the simple aesthetic of other Whisky cockpit components.  3D-forged … read more

your price $48.00 + ships free

BuyBuyPART NUM 601487
Race Face Turbine-R Stem, (35.0) 0d X 40mm - Black
Race Face Turbine-R Stem, (35.0) 0d X 40mm - Black

Rebranded Easton Haven stem, CNC machined aluminum with laser etched logos 4-bolt face plate, opposing 2-bolt steerer clamp. 138g (50mm) … read more

your price $109.99 + ships free

BuyBuyPART NUM 150928
Reverse Base Stem, 25.4 x 40mm, Black
Reverse Base Stem, 25.4 x 40mm, Black

Stable, light and shapely CNC machined 6061-T6 aluminum for All Mountain, Enduro and Slopestyle 145g (25.4mm) Item Specifications … read more

18% offretail $64.99 your price $53.49

BuyBuyPART NUM 354447
Industry Nine A318 Stem, (31.8) 40mm - Silver
Industry Nine A318 Stem, (31.8) 40mm - SilverIndustry Nine

7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina 180 degree clamp wrap with high strength 316 stainless … read more

your price $145.00 + ships free

BuyBuyPART NUM 171546
Sun Bicycles Trike Quill Stem 25.4 x 205mm
Sun Bicycles Trike Quill Stem 25.4 x 205mm

Alloy Trike Stem Size : (25.4 x 205mm QUILL x 40mm Ext 25.4mm Clamp) Color: Silver … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

your price $21.98

BuyBuyPART NUM 232296
Renthal Apex Stem: 31.8, 1-1/8, 40mm Reach, +/- 6 degree
Renthal Apex Stem: 31.8, 1-1/8, 40mm Reach, +/- 6 degree

Renthal Apex Stems. The Renthal Apex combines All Mountain strength, Enduro stiffness and XC lightweight that makes this stem the perfect choice for any … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

your price $140.45 + ships free

BuyBuyPART NUM 324497
Industry Nine A35 Stem, (35.0) 40mm - Pink
Industry Nine A35 Stem, (35.0) 40mm - PinkIndustry Nine

7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina 180 degree clamp wrap with high strength 316 stainless … read more

your price $155.00 + ships free

BuyBuyPART NUM 950615
Spank Spoon 2 Stem - 40mm 31.8mm 0 Degree Alloy Black
Spank Spoon 2 Stem - 40mm 31.8mm 0 Degree Alloy Black

Unique style, modern geometry, and rock solid construction, without the heavy price tag. Spank's Spoon Stem is 2D Forged and CNC optimized for strength … read more

your price $45.99 + ships free

BuyBuyPART NUM 664729
Race Face Aeffect-R Stem, (35.0) 0d X 40mm Black
Race Face Aeffect-R Stem, (35.0) 0d X 40mm Black

Forged and machined 6061 aluminum 4-bolt face plate, opposing 2-bolt steerer clamp Item Specifications steerer dia.: 1-1/8" bar … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

your price $64.99 + ships free

BuyBuyPART NUM 327762
Thomson Elite X4 Mountain Stem 40mm +/- 0 degree 31.8 1-1/8" Threadless
Thomson Elite X4 Mountain Stem 40mm +/- 0 degree 31.8 1-1/8" Threadless Thomson

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. … read more

StarStarStarStarStar 4 of 5 ( 2 ) 4 of 5 stars average ( 2 reviews )

your price $114.95 + ships free

BuyBuyPART NUM 751094
Thomson Elite X4 Mountain Stem 40mm +/- 0 degree 31.8 1-1/8 Threadless
Thomson Elite X4 Mountain Stem 40mm +/- 0 degree 31.8 1-1/8 Threadless Thomson

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. … read more

StarStarStarStarStar 4 of 5 ( 2 ) 4 of 5 stars average ( 2 reviews )

your price $114.95 + ships free

BuyBuyPART NUM 332850
Industry Nine A318 Stem - 40mm, 31.8mm Clamp, +/-4.4, 1 1/8", Aluminum, Green
Industry Nine A318 Stem - 40mm, 31.8mm Clamp, +/-4.4, 1 1/8", Aluminum, GreenIndustry Nine

Industry Nine's A-Series mountain bike stems are crafted from domestically-sourced 7075 aluminum billet into a svelte design achieving a nexus of form … read more

your price $155.00 + ships free

BuyBuyPART NUM 320357
Industry Nine A35 Stem, 35mm x 40mm, Silver
Industry Nine A35 Stem, 35mm x 40mm, SilverIndustry Nine

7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina 180 degree clamp wrap with high strength 316 stainless … read more

your price $145.00 + ships free

BuyBuyPART NUM 114601
Anvl Swage Direct Mount Stem, (35) 40mm - Black
Anvl Swage Direct Mount Stem, (35) 40mm - Black

CNC machined from 6061 aluminum \n Designed to provide better steering with short offset dual crown forks\n 72mm total clamp width … read more

$24 offretail $119.99 your price $95.99

BuyBuyPART NUM 303205
Industry Nine

"Industry Nine hubs are handmade in Asheville, NC"

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Salsa

"At Salsa, we believe a sense of adventure makes life better. The bicycle can be so much more than just a bike; it's a path to new places, new people, and amazing experiences."

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Whisky Parts Co.

"Whisky Parts Co. makes high quality carbon components designed with unique features that help you do more with your bike and stand out from the rest. We believe that our work can help every rider find a new level of confidence and performance with our sturdy and lightweight forks, bars, rims and more. So whether you are building a new bike or upgrading one you already have, you'll find an uncommon attention to detail in every product we offer."

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Thomson

Thomson is leading with innovative design for two primary markets - aerospace and cycling.

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Sunlite

"Every year bikes change, styles and trends evolve, old bikes are in need of repairs and new bikes are waiting for that personal touch. We provide the means to keep your bike on the road and fun to ride!"

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Answer

Answer BMX makes BMX racing components.

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Dimension

Dimension makes quality components to repair or custom-fit the vast majority of bikes being ridden today, and provide the accessories that make them fun to ride.

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Ritchey

"Ritchey bicycle components have been raced to victory in some of the biggest cycling competitions in the world including the UCI World Championships, the Tour de France and the Olympics and it all began in a simple garage in Menlo Park, California with Tom Ritchey.'

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Full Speed Ahead

"We move forward with a desire to deliver the best possible components to our customers and a determined spirit of competition."

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We define color as the main color of the item. It may have accents or highlights in other colors.

In Store products are available to view in our showroom. In Store orders usually ship the same or next business day.

These models are available for online purchasing and can be shipped directly to you.

Bar clamp diameter is the diamater of the handlebar.

Stem length is measured from the center of one clamp to the center of the other clamp. This measurement is sometimes known as the reach or extension.

S.H.I.S clamp diameter is the steerer tube diameter.

Stem angles are measured perpendicular to the clamp. For example, a 90 degree stem is straight. Sometimes, this may also be refered to as a 0 degree stem. If two measurements are listed, the stem can be flipped for angling up or down.

Stem Type

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